1:This is an adjustable padded kayak seat with a detachable back pack/ bag on the back for the seat. 2:This seat is suitable for most kayaks and canoes and this is for sit-on-top kayak paddlers. This high quality kayak seat gives paddlers a comfortable kayaking experience. 3:The detachable back pack is able to store most of the kayak accessories or lunch boxes. 4: Features & benefits -adjustable front and rear straps -four (4) cooper hooks to secure the seat to the kayak non-slip contoured padded slip surface -suitable for most kayaks and canoes. 5:material: neoprene + 600D Polyester, Inter layer: EVA foam + PE plate, Detachable back pack/ bag to store most kayak accessories and lunch boxes, durable and lightweight comfy backrest design.